add pumpkin and Brown Sugar in the BOIL not mash
-you can use butternut squash instead of pumpkin
3 Days Before Brewing: use fresh pumpkin which you roast in the oven (seeds removed) at 375 degrees F until soft (2-3 hours). Sprinkle pumpkin with Brown sugar before roasting. Peel skin from pumpkin after letting it cool the peel off and dice it into cubes (being sure to save the juice for its flavor) and store in a covered bowl in the fridge. On brew day, let the pumpkin warm to room temperature and put it in the kettle for the duration of the boil. Put the pumpkin into a fine mesh bag designed for fruit or a bop spider equipped with a paint-straining bag.
Mash at 155 for 60 mins boil 90 mins
feel free to give me any advice on water chemistry!